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This patch ensures that $libc_cv_cc_submachine, which is set from "--with-cpu", overrides $CFLAGS for configure time tests. Suggested-by: Peter Bergner <bergner@linux.ibm.com> Reviewed-by: Peter Bergner <bergner@linux.ibm.com>
79 lines
2.7 KiB
Plaintext
79 lines
2.7 KiB
Plaintext
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/powerpc/powerpc64.
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printf "%s\n" "#define HIDDEN_VAR_NEEDS_DYNAMIC_RELOC 1" >>confdefs.h
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for support for overlapping .opd entries" >&5
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printf %s "checking for support for overlapping .opd entries... " >&6; }
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if test ${libc_cv_overlapping_opd+y}
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then :
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printf %s "(cached) " >&6
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else $as_nop
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libc_cv_overlapping_opd=no
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echo 'void foo (void) {}' > conftest.c
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $libc_cv_cc_submachine -S conftest.c -o conftest.s 1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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if grep '\.TOC\.@tocbase' conftest.s > /dev/null; then
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if grep '\.TOC\.@tocbase[ ]*,[ ]*0' conftest.s > /dev/null; then
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:
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else
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libc_cv_overlapping_opd=yes
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fi
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fi
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fi
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rm -f conftest.c conftest.s
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_overlapping_opd" >&5
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printf "%s\n" "$libc_cv_overlapping_opd" >&6; }
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if test x$libc_cv_overlapping_opd = xyes; then
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printf "%s\n" "#define USE_PPC64_OVERLAPPING_OPD 1" >>confdefs.h
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fi
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# We check if compiler supports @notoc generation since there is no
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# gain by enabling it if it will be optimized away by the linker.
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# It also helps linkers that might not optimize it and end up
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# generating stubs with ISA 3.1 instruction even targeting older ISA.
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if the compiler supports @notoc" >&5
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printf %s "checking if the compiler supports @notoc... " >&6; }
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if test ${libc_cv_ppc64_notoc+y}
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then :
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printf %s "(cached) " >&6
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else $as_nop
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cat > conftest.c <<EOF
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int bar (void);
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int foo (void) { return bar () + 1; }
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EOF
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libc_cv_ppc64_notoc=no
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $libc_cv_cc_submachine -S -o conftest.s conftest.c'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; } \
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&& { ac_try='grep -q -E 'bar@notoc' conftest.s'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }
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then
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libc_cv_ppc64_notoc=yes
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fi
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rm -rf conftest.*
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ppc64_notoc" >&5
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printf "%s\n" "$libc_cv_ppc64_notoc" >&6; }
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if test x$libc_cv_ppc64_notoc = xyes
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then :
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printf "%s\n" "#define USE_PPC64_NOTOC 1" >>confdefs.h
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fi
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